Power-whistle.



R. BERRENBERG.

POWER WHISTLE. APPLIATION FILED JULY 15, 1908.

`Patented Sept. 10, 1912 ber, are common an 'UNirnD sfrATEs PATENT (nunon.4 i

REINOLD BERRENBERG, OF BOSTON, MASSACHUSETTS.

POWER-WHISTLE.

Application led July 15,

To all whom it 'may concern:

Be it known that I, RniNoLD Bunnies- BERG, a citizen of the United States, ot Bos; ton, in the county o1 Suffolk and State ot Massachusetts, have invented a new and useful Improvement in Power-Vilhistles, ot which the following, taken in connection with the accompanying drawings, is a speciication.

My invention relates to that class ot whistles which are operated by power, and particularly to whistles that are used on automobiles, motor boats, and the like.

The object'of the invention is to so make the whistle and 'its operating connect-ions that it may be located atiany point in a boat or other motor drivenvehicle and be operated from anyconvenient. point to give a loud, clear blast withoutvariation, as long as may be desired. l

To this end the invention comprises a poweg/v'i-.stle connected to a rotary aircompressoij having a driving pulley which 1s adapted'tobe brought into contact with the fly-Wheel of the engine which propels the boat or vehicle.

The invention will be clearly understood from the following detailed description and an inspection of the accompanying drawings, in whichv ,Y

Figure 1 is a view ofthe invention partly in elevation and partly in vertical section; Fig. 2 is a plan of the same; and Fig. 3 is a view of the whistle proper, partly in elevation and partly in vertical section.

As shown 1n the drawings the 'whistle comprises a bell-part A which is attached to an air-chamber B by a screw bolt .A1, A2,

which has a collar or stop nut A to press against the diaphragm or circular plate B1 and hold it firmly against the boss B?, the

'said boss ,B2 being attached by radial -.arms

to the upper part-of the air-chamber B. The above described arts, except the chamd need not 'be further referred to.

The airchamber B (see Fig. 3,) is attached by the hollow base Bs to the airsupply pipe C to cause the more complete mixture of the currents of the inrus ing air.

There is a light hinged valve which swings on alpintle P and is held to its seat by slight pressureexerted' by a spring S'. The function of this valve is to cause the inrushing air to distribute its currents in ali Specification of Letters Patent.

latentod Sept. 10, MM2.

Serial No. 443,736.

directions, as indicated by the arrows, within the chamber B so that the pressureat the escape opening around the plate B1 will be nearly equal for all parts of th'e opening,

and thus' secure an even, clear tone, irresportive et the jar or agitation due to the motion ci the vehicle to which the whistle ing pulley D3, which is adapted to bebrought into contact with the'fiy-wheel D' ot' the engine which propels the boat or vehicle. A hand lever D2 is connected with the base piece D1 so that the cognpressor may be swung trcm the dotted line posi` tion (see Fig. Q) to the-,full lineposit'iony: to bring the drivingpulley D3 int Contact with thc fly-wheel D4 to give motion to the rotary compressor-pistons and furnish l a large supply of air under pressure to the whistle, thus causing the lat-ter to with a loud, clear blast.

As indicated by the broken pipe C, the whistle may be located at any convenient point in the boat, and for this purpose a flexible hose pipe is usually supplied, or the whistle may be connected directly to the compressor and move therewith. A pressure of twenty pounds per squareV inch and upward can Vbe readily produced by the compressor, so that the distance of the whistle from the compressor has no eiiect to lessen the tone. The pull for operating the hand lever D2 may also he located at any. point in the boat and connected to the lever by a cord L.

A spring R is attached to the hand lever D2 and tends to rotate the compressor into the dotted line position to separate the drivsound ing pulley D\3 from the iiy-wheel D. Byv

erful blast of airis supplied to the wli'istte,

' but 1 ot its location o1 (l'frtnmoe from The hlt st omi he iiiuintnined as 'teil und can he liesii'tl :1 great .here is no variation, or falling tone as with. systems omployii'lg esseri our. i

illustrated and described :i @iml'mtliu'nmitof the iuvei'ition, l llmt ,many modifications Cnn he herein by :my peteoii Skilled in thil l u l Lrtihfr from the scope of the f im, the Claims. ',ll'xexe v to he limited to :ill the 'i moet' i'ietion shown :incl clesoiiheth thistle urli, ji'il inwiill :fore fl :lo ooi, i detail l, il" device? Comprising :1V buse, i: eonipiemfoi lsiivotnlly mounted e uml limiting :t driving pi'illejg :i

i: eolineeioil to Suid oir com;

ml i. lwoi arranged lo swing the pulley of the compressor into Contact with, the flynvheeljof the engine.

3. The combination, with, the ily-wheel of' mi engine, of' 4a btie, a, foto y :iii'ec'rou'ipio i pivotally mounted on the l :mtl having :i driving pulley, :L lnnwei w mile, means foi' 4connectlig the oon'ipi'ossoi' with thtI whistle.y a level.' hy whieh th\I oil-coxnpreesoi' cam be turned about its pivot to bring the driving pulley ofthe Cornpi'eestn: into Contact with the fly-wheel of the eilgiiie, and momie im: autoix'izttieally freeing' the thriving pulley from the .ily-'wheel when the level" is reileneed."

In n eig'miling device, the mihhirmtii'm of :1 base, fi rotary Lii'icoiilpifeseol' pimtzllly mounted ou the buse and having 1i driving pulley, nml n, lever by which the air-com4 pressor can he turni-2d' about its pivot to swng'the driving pulley in :i plane aubi Stantinll-y par'nllel to Suid base, and a power Whistle connected to Suid nix: con'lplessor.

In testimony whereof, I have signed my 1mm@ to this specification :in the 'presence of two subscribing witnesses, on this 21rd clay of July, A. D. 1908.

REINOLD BERRENBE RG.

Witnesses z` FRANK G. PARKER, JOI-IN BUGKLER. 

